"In her speech (after South Dakota and Montana primaries), she (Clinton) will convey the message that first and foremost she is committed to Democrats winning in November and will do whatever she's asked to do," a close friend and adviser of the former first lady who speaks with her regularly and is privy to her deliberations told CNN.

"She will do whatever it takes to bring the party together to win and whatever is asked of her to make sure the Republicans are defeated."

That message has been conveyed to the Obama campaign via informal channels, according to Obama insiders who said the message is a signal that she would be willing to serve as his vice president.

Both the Clinton and Obama campaigns told CNN that there have been no formal discussions between the campaigns on offering the vice presidentship ticket to her.

Obama insiders are split over whether considering Clinton to be on the ticket is a good idea, the report said.

His campaign is on the verge of declaring a victory after the last two primaries are voted on Tuesday.